Panasonic CZ-256ESMC2U User manual

Panasonic Corporation
1006 Kadoma, Kadoma City, Osaka, Japan
85464369912010
H0916-0
CV6233334110
Panasonic Corporation
http://www.panasonic.com
Please Read Before Starting
This controller must be installed by the sales dealer or installer.
These instructions are all you need for most installation sites
and maintenance conditions. If you require help for a special
problem, contact our sales/service outlet or your certified dealer
for additional instructions.
WARNING
This symbol refers to a hazard or unsafe practice
which can result in severe personal injury or death.
CAUTION
This symbol refers to a hazard or unsafe
practice which can result in personal injury
or product or property damage.
We assume no responsibility for accidents or damages
resulting from methods other than those described in the
installation instructions or methods without using specified
parts. Malfunctions that occurred due to the unauthorised
installation methods are not covered by the product warranty.
This controller shall be installed in accordance with local
codes.
After the installation is complete, perform test operation to
confirm that no abnormality is present.

Read the installation instructions of devices to be connected as well.
When relocating or repairing this controller, provide the
Installation Instructions to the servicing personnel.
WARNING
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.

This controller is strongly recommended to be installed
with Earth Leakage Circuit Breaker (ELCB) or Residual
Current Device (RCD).
Otherwise, it may cause electrical shock and fire in
case of equipment breakdown or insulation breakdown.
Earth Leakage Circuit Breaker (ELCB) must be
incorporated in the fixed wiring in accordance with the
wiring regulations. The Earth Leakage Circuit Breaker
(ELCB) must be an approved 10 A, having a contact
separation by 0-1/8 in. (3 mm) in all poles.
Provide a power outlet to be used exclusively
for this controller.
Turn off the circuit breaker of the controllers
before installation.

Do not supply power to the controller until all
wiring is completed or reconnected and checked.
 Fix the power supply wiring securely with the
clamper so that the power supply terminal board is
free of tension (external force) when pulled. Loose
connection of the terminal board may cause fire.
 Select an installation location which is rigid and
strong enough to support or hold the controller,
and select a location for easy maintenance.
This product must not be modified or
disassembled under any circumstances.
Modified or disassembled controller may
cause fire, electric shock or injury.

Do not clean inside the controller by users.
Engage authorized dealer or specialist for cleaning.
Do not operate with wet hands.
CAUTION
Ground yourself to discharge static electricity
before performing any wiring.

Do not use the controller at the following locations.
•
Areas where leakage of flammable gas may be expected
• Places where large amounts of oil mist exist
•
Locations where external air may enter the room
directly (This may cause “condensation”)
• Locations where high-frequency emissions are generated
• Locations where voltage fluctuation frequently occurs
Do not wash with water.
Safety Precautions
Model No. CZ-256ESMC2U
Dimensions
[H × W × D]
9-29/64 × 11-1/32 × (0-25/32 + 2-9/16) in.
(240 × 280 × (20 + 65) mm)
Weight 5 lbs. (2.7 kg)
Temperature/
Humidity range
32 °F to 104 °F (0 °C to 40 °C) / 20 % to 80 %
(no condensation) Indoor use only.
Rated voltage/
Rated frequency
AC24 V 60 Hz 1-PH
Power consumption Max. 20 W
Clock
Precision ± 30 seconds/month (at normal temperature 77 °F
(25 °C)) * Adjust periodically.
Holding
time
100 days (at normal temperature 77 °F (25 °C) with full charge)
* Approx. 8 hours are required for full charge.
Number of
connectable
units per link*1
Up to 100 units of the combined total of the
following
• Indoor unit - Up to 64 units*2
• Outdoor unit - Up to 30 units
• Central control device - Up to 10 units
Specifications
*1: The maximum number of connectable units is shown below.
• When using only this unit: 128 indoor units and 60 outdoor units
• When connecting a Communication Adaptor: 256 indoor units and 120 outdoor units
*2: The number of indoor units includes the
Interface Adaptor.
Installation Instructions
Intelligent Controller
Model No. CZ-256ESMC2U
CZ-256ESMC2U工説北米冊子.indd1CZ-256ESMC2U工説北米冊子.indd1 2016/08/0316:16:492016/08/0316:16:49

2
 Design Control Box Mounting Position How to Mount (Control Box)
8-13/16 (224) Hole of control box
8-37/64 (218) Screw hole pitch
10-3/64 (255) Screw hole pitch
9-17/32 (242) Hole of the control box
Screw hole
φ0-13/64 (5)
in. (mm)
3-15/16 (100)
or more
3-15/16 (100)
or more
3-15/16 (100)
or more
Control box
5-29/32 (150)
or more
1-31/32 (50)
or more
< >: Number of pieces
Nut (supplied)
M4<4>
Washer
(Supplied) <4>
Screw (supplied)
M4×10 <4>
Panel-fixing
screw
M3×6 <2>
Embed into the
control box.
1.
Remove the
panel-fixing
screw and
panel (to the
upper side).
2. Install to the control box
using the supplied screws,
nuts and washers.
3.Using the panel-fixing screw, install
the panel to the original position
(from the upper side).
Control box
To ensure proper airflow (for heat dissipation) inside the control
box, provide vents (slits, etc.) both on the upper part and lower
part (or bottom side) of the right and left sides.
• Do not allow the temperature inside the control box to exceed 104 °F (40 °C).
• Be careful not to block the above vents.
Mounting
Supplied accessories < >: Number of pieces
Screw <4>
(M4×10)
Washer <4>
Nut <4>
(M4)
Clamper <4>
Operating Instructions and License List (DVD),
Quick Reference, Installation Instructions
* Wiring are not included (field supplied item).
Dimensions (Part Names)
0-25/32 (20)
3-11/32 (85)
11-35/64 (280)
9-29/64 (240)
0-55/64
(22)
USB terminalStorage door
Push lightly to open or close.
Power
indicator
Illuminates at
power-on.
LAN terminal in. (mm)
Caution for Network Connection
 Connecting to Internet will enable you to operate the unit
and check the status using a PC from a remote location.
When connecting to Internet, implement security
measures against illegal access from outside.
For detailed connection and setup method, consult the
network administrator.
Installation Precautions
Installation Location
Avoid the following locations for installation.
• Under direct sunlight
• Location near heat source
• Location where the controller will be splashed with water or
affected by dampness or humidity
• Uneven surface
• Location that is subject to excessive vibration or physical impacts.
(Fixing screws may come off, and the controller may drop.)
Install the controller vertically to the floor.
Install the controller at a location with suitable
temperature and humidity for using.
Do not install controller at the locations with the
equipment (medical equipment, etc.) which generates
the high-frequency emissions.
(It may interfere with the equipment and may cause
accidents due to malfunction.)
Install at least 3 ft. (1 m) away from TV, radio, PC. etc.
(To prevent fuzzy images or noise)
General Precautions on Wiring
Regulations on wire diameters differ from locality to
locality.
For field wiring rules, please refer to your LOCAL
ELECTRICAL CODES before beginning.
You must ensure that installation complies with all
relevant rules and regulations.
 Use the field supplied wiring with at least 0-3/64 in. (1 mm)
in thickness of insulation part including the sheath.
Connect all wiring tightly to prevent the terminal
board from loosening when the wiring connection
part is pulled by an external force. (Otherwise, fire or
overheating may occur.)
Using putty (field supplied item), etc., fill the hole of the
control box through which the wiring passes.
 Do not pass the power supply wiring and other wirings
through the same conduit. Keep as long a distance as
possible between them to alleviate the influence of noise.
Do not run the power supply wiring and other wiring in
the same conduit or bundle them together.
(An operational error from noise may occur.)
Do not bury the wiring in the ground.
CZ-256ESMC2U工説北米冊子.indd2CZ-256ESMC2U工説北米冊子.indd2 2016/08/0316:16:492016/08/0316:16:49

3
Power Supply Wiring
• Power supply voltage : AC24 V 60 Hz 1-PH
• Voltage fluctuation : ±10 % or less
• Electric power consumption : 20 W
• Be sure to use a dedicated line for power source.
Type of wiring
• Use a flexible wiring of AWG #17 - AWG #14
Total Wire Length
• 99 ft. (30 m) or less
Inter-Unit Control Wiring
Type of wiring
• Use a flexible wiring of AWG #20 - AWG #14
• No polarity
Total Wire Length : 3280 ft. (1000 m) or less
Number of connectable units and devices :
(→P.1 “Specifications”)
Attention
• When using the unit at a location susceptible to electrical
noise, use a flexible shield wiring (one side grounding).
 Communication Adaptor Control Wiring
(When connecting a Communication Adaptor)
Polarity (+/-) present
Number of connectable Communication Adaptor
• up to 7 units
For the type of wiring and total wiring length,
see “Installation Instructions” supplied with the
Communication Adaptor.
External I/O Wiring
(When connecting external equipment)
Type of wiring
• Use a flexible wiring of AWG #20 - AWG #14
Wire Length : 66 ft. (20 m) or less
Attention
• When using the unit at a location susceptible to electrical
noise, use a flexible shield wiring (one side grounding).
LAN Cable (When connecting to a network)
Type of wiring
• Category 5 or above straight cable
Wire Length : 328 ft. (100 m) or less
Preparations for Wiring
Basic Wiring Diagram
U1 U2
U1
U2
+
–
U1 U2
U1 U2
L
N
U1 U2 U1 U2
+
–
NL
Power source
(AC 120 V 60 Hz)
Outdoor unit
This unit
Power trans*3
(AC 24 V 60 Hz)
[field supplied item]
Power supply wiring
Communication
Adaptor
Communication
Adaptor
control wiring
• Polarity
present
Inter-unit control
wiring
• No polarity
Outdoor
unit
Indoor unit Indoor unit
1-1
Indoor unit
1-2
*3: The AC 24 V power from an energy limited Class II
power source must be provided to the equipment.
1. Turn the circuit breaker off before connecting the wiring
2. How to Attach the Ring Pressure Terminal
For power supply wiring
Process the end of each wiring, and
attach the ring pressure terminal (field
supplied item).
For shield wiring
Process the end of the each wiring and attach the ring
pressure terminal (field supplied item).
Remove wiring coat. Shield mesh
Cover with the tape.
Strip
Shield mesh
Insulation tape
Attach ring pressure
terminal. Ring pressure
terminal
3. Remove the
power switch
cover
4. Wiring
Connect the power supply wiring.
• Do not over-tighten. (The screw may be damaged.)
Connect the inter-unit control wiring.
When using the shield wiring, connect the shield part
of the shield wiring to No. 0 (FG*4) of the signal terminal
board (TB2).
*4: Functional Ground
• Do not over-tighten. (The screw may be damaged.)
There is no polarity.

Connect the Communication Adaptor control wiring.
Make sure the polarities (+/-) are correct.
Attention
• Read the “Installation Instructions” supplied with the
Communication Adaptor.

Connecting external equipment.
Attention
• See “Connecting to External Equipment” (P.4).

Fix the power supply wiring and other communication
wirings with the clamper (supplied) securely.
(Do not apply tensile force on the terminal connection part.)

Connect the LAN cable.
After all wiring arrangements are complete, turn
the circuit breaker on.
• Before power on, measure the voltage of the power supply
terminal board, and check it for the specified voltage.
Turning the power on with a voltage other than the
specified one may blow the fuse. If this occurs, no power
is supplied, and this unit may need to be replaced.
Strip Ring
pressure
terminal
Screw
Screw
Power switch cover
Power-in port
Wiring
CZ-256ESMC2U工説北米冊子.indd3CZ-256ESMC2U工説北米冊子.indd3 2016/08/0316:16:502016/08/0316:16:50

4
Wiring (continued)
U1
FG*4
U2
0
1
2
3
4
5
14
15
16
17
18
19
U1
U2
+
-
FG*
4
ON
OFF
ON
OFF
L
N

LAN
Cable
LAN
terminal
Clamper
(supplied)
Power switch
Pass
through the power-in port.
Power supply
wiring
(AC24 V 60 Hz)
Connect the earth wiring if the noise is induced to
this unit.
Clamper
(supplied)
Power supply terminal board (TB1) Inter-unit
control
wiring
Signal terminal board
(TB2)
Use these screws when connecting the shield
wiring to ground. (FG*4)

External
equipment
connection
terminal
(See “Connecting to External
Equipment”)

Communication
Adaptor control
wiring
Connect to inter-unit control wiring (LINK2)
Connect to inter-unit control wiring (LINK1)
Connect the shield wiring for the inter-
unit control wiring to ground (FG*4) . Connect the Communication
Adaptor control wiring.
(ADAPT +,-,FG*4)
Signal terminal board (TB2) connection
Fix
securely.
Connecting to External Equipment
• Non-voltage contact "a"
• Keep the external I/O wiring lengths of 66 ft. (20 m) or less. If a longer length is needed, use a Communication Adaptor or relay.
• A voltage of DC5 V (approx. 10 mA) is applied to the contact to detect the input signal.
• Do not apply an external voltage to the input terminal.
• The contact allowable voltage and current for the output signal terminal are max. DC30 V and 0.5 A respectively.
 Turn on all of the indoor units and the outdoor units.
Turn on the Communication Adaptor (only when
connected), and make the necessary settings.
(See “Installation Instructions” supplied with the
Communication Adaptor.)
Turn on this unit.

Attach the power switch cover to the original position.
• Do not allow the wirings to be caught.
 Refer to “Quick Reference” and check the following.
• Check if the clock setting and the number of connected
units are correctly displayed.
• Set the central address.
• Make other necessary settings (unit name, area setting,
distribution setting, etc.).
• Check if the indoor unit, etc. can be operated properly
using this unit, and correct statuses are displayed.
Refer to one of “Service Manual”, “Test Run
Service Manual” and “Technical Data”, and check
the following.
• Make the communication setting with the air conditioner.
• Check and confirm the connection configuration.
Setting and Test Operation
If the power supply wiring is mistakenly connected
to a terminal board other than the power supply
terminal board, the devices connected to this
controller or this controller will malfunction.
Common (COM1)
Pulse meter input (Pi1)
Pulse meter input (Pi2)
Pulse meter input (Pi3)
Pulse meter input
(Non-voltage contact "a" Pulse)
Equipment side
• Minimum pulse width: 30 msec
or more, or 100 msec or more
(selectable by setting)
• Minimum pulse interval: 1 sec
17
18
19
20
21
22
23
Common (COM2)
External input*5
(Non-voltage contact "a" Static)
External output
(Non-voltage contact "a" Static)
Digital input
Common (COM3) Equipment side
Digital input1 (Di1)
Digital input2 (Di2)
Digital input3 (Di3)
• Minimum application load: DC5V 1mA
*5: When performing the demand control,
connect to External input (Di) terminal.
Digital output1 (DO1)
Digital output2 (DO2)
Equipment side
*4: Functional Ground
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
25
26
7
8
9
10
Signal terminal board (TB2)
© Panasonic Corporation 2016
Printed in Japan
CZ-256ESMC2U工説北米冊子.indd4CZ-256ESMC2U工説北米冊子.indd4 2016/08/0316:16:502016/08/0316:16:50